#ifndef SRC_NODE_API_H_
#define SRC_NODE_API_H_

#include <stddef.h>
#include <stdbool.h>
#include "node_api_types.h"

struct uv_loop_s; // Forward declaration.

#ifndef NAPI_VERSION
#ifdef NAPI_EXPERIMENTAL
// Use INT_MAX, this should only be consumed by the pre-processor anyway.
#define NAPI_VERSION 2147483647
#else
// The baseline version for N-API
#define NAPI_VERSION 3
#endif
#endif

#ifdef _WIN32
#ifdef BUILDING_NODE_EXTENSION
#ifdef EXTERNAL_NAPI
    // Building external N-API, or native module against external N-API
#define NAPI_EXTERN /* nothing */
#else
    // Building native module against node with built-in N-API
#define NAPI_EXTERN __declspec(dllimport)
#endif
#else
    // Building node with built-in N-API
#define NAPI_EXTERN __declspec(dllexport)
#endif
#else
#define NAPI_EXTERN /* nothing */
#endif

#ifdef _WIN32
#define NAPI_MODULE_EXPORT __declspec(dllexport)
#else
#define NAPI_MODULE_EXPORT __attribute__((visibility("default")))
#endif

#ifdef __GNUC__
#define NAPI_NO_RETURN __attribute__((noreturn))
#else
#define NAPI_NO_RETURN
#endif

typedef napi_value (*napi_addon_register_func)(napi_env env,
    napi_value exports);

typedef struct {
    int nm_version;
    unsigned int nm_flags;
    const char* nm_filename;
    napi_addon_register_func nm_register_func;
    const char* nm_modname;
    void* nm_priv;
    void* reserved[4];
} napi_module;

#define NAPI_MODULE_VERSION 1

#if defined(_MSC_VER)
#pragma section(".CRT$XCU", read)
#define NAPI_C_CTOR(fn)                                                           \
    static void __cdecl fn(void);                                                 \
    __declspec(dllexport, allocate(".CRT$XCU")) void(__cdecl * fn##_)(void) = fn; \
    static void __cdecl fn(void)
#else
#define NAPI_C_CTOR(fn)                                \
    static void fn(void) __attribute__((constructor)); \
    static void fn(void)
#endif

#ifdef __cplusplus
#define EXTERN_C_START extern "C" {
#define EXTERN_C_END }
#else
#define EXTERN_C_START
#define EXTERN_C_END
#endif

#define NAPI_MODULE_X(modname, regfunc, priv, flags) \
    EXTERN_C_START                                   \
    static napi_module _module = {                   \
        NAPI_MODULE_VERSION,                         \
        flags,                                       \
        __FILE__,                                    \
        regfunc,                                     \
        #modname,                                    \
        priv,                                        \
        { 0 },                                       \
    };                                               \
    NAPI_C_CTOR(_register_##modname)                 \
    {                                                \
        napi_module_register(&_module);              \
    }                                                \
    EXTERN_C_END

#define NAPI_MODULE(modname, regfunc) \
    NAPI_MODULE_X(modname, regfunc, NULL, 0) // NOLINT (readability/null_usage)

#define NAPI_MODULE_INITIALIZER_BASE napi_register_module_v

#define NAPI_MODULE_INITIALIZER_X(base, version) \
    NAPI_MODULE_INITIALIZER_X_HELPER(base, version)
#define NAPI_MODULE_INITIALIZER_X_HELPER(base, version) base##version

#define NAPI_MODULE_INITIALIZER                             \
    NAPI_MODULE_INITIALIZER_X(NAPI_MODULE_INITIALIZER_BASE, \
        NAPI_MODULE_VERSION)

#define NAPI_MODULE_INIT()                                     \
    EXTERN_C_START                                             \
    NAPI_MODULE_EXPORT napi_value                              \
    NAPI_MODULE_INITIALIZER(napi_env env, napi_value exports); \
    EXTERN_C_END                                               \
    NAPI_MODULE(NODE_GYP_MODULE_NAME, NAPI_MODULE_INITIALIZER) \
    napi_value NAPI_MODULE_INITIALIZER(napi_env env,           \
        napi_value exports)

#define NAPI_AUTO_LENGTH SIZE_MAX

EXTERN_C_START

NAPI_EXTERN void napi_module_register(napi_module* mod);

NAPI_EXTERN napi_status
napi_get_last_error_info(napi_env env,
    const napi_extended_error_info** result);

NAPI_EXTERN NAPI_NO_RETURN void napi_fatal_error(const char* location,
    size_t location_len,
    const char* message,
    size_t message_len);

// Getters for defined singletons
NAPI_EXTERN napi_status napi_get_undefined(napi_env env, napi_value* result);
NAPI_EXTERN napi_status napi_get_null(napi_env env, napi_value* result);
NAPI_EXTERN napi_status napi_get_global(napi_env env, napi_value* result);
NAPI_EXTERN napi_status napi_get_boolean(napi_env env,
    bool value,
    napi_value* result);

// Methods to create Primitive types/Objects
NAPI_EXTERN napi_status napi_create_object(napi_env env, napi_value* result);
NAPI_EXTERN napi_status napi_create_array(napi_env env, napi_value* result);
NAPI_EXTERN napi_status napi_create_array_with_length(napi_env env,
    size_t length,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_double(napi_env env,
    double value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_int32(napi_env env,
    int32_t value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_uint32(napi_env env,
    uint32_t value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_int64(napi_env env,
    int64_t value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_string_latin1(napi_env env,
    const char* str,
    size_t length,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_string_utf8(napi_env env,
    const char* str,
    size_t length,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_string_utf16(napi_env env,
    const char16_t* str,
    size_t length,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_symbol(napi_env env,
    napi_value description,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_function(napi_env env,
    const char* utf8name,
    size_t length,
    napi_callback cb,
    void* data,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_error(napi_env env,
    napi_value code,
    napi_value msg,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_type_error(napi_env env,
    napi_value code,
    napi_value msg,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_range_error(napi_env env,
    napi_value code,
    napi_value msg,
    napi_value* result);

// Methods to get the native napi_value from Primitive type
NAPI_EXTERN napi_status napi_typeof(napi_env env,
    napi_value value,
    napi_valuetype* result);
NAPI_EXTERN napi_status napi_get_value_double(napi_env env,
    napi_value value,
    double* result);
NAPI_EXTERN napi_status napi_get_value_int32(napi_env env,
    napi_value value,
    int32_t* result);
NAPI_EXTERN napi_status napi_get_value_uint32(napi_env env,
    napi_value value,
    uint32_t* result);
NAPI_EXTERN napi_status napi_get_value_int64(napi_env env,
    napi_value value,
    int64_t* result);
NAPI_EXTERN napi_status napi_get_value_bool(napi_env env,
    napi_value value,
    bool* result);

// Copies LATIN-1 encoded bytes from a string into a buffer.
NAPI_EXTERN napi_status napi_get_value_string_latin1(napi_env env,
    napi_value value,
    char* buf,
    size_t bufsize,
    size_t* result);

// Copies UTF-8 encoded bytes from a string into a buffer.
NAPI_EXTERN napi_status napi_get_value_string_utf8(napi_env env,
    napi_value value,
    char* buf,
    size_t bufsize,
    size_t* result);

// Copies UTF-16 encoded bytes from a string into a buffer.
NAPI_EXTERN napi_status napi_get_value_string_utf16(napi_env env,
    napi_value value,
    char16_t* buf,
    size_t bufsize,
    size_t* result);

// Methods to coerce values
// These APIs may execute user scripts
NAPI_EXTERN napi_status napi_coerce_to_bool(napi_env env,
    napi_value value,
    napi_value* result);
NAPI_EXTERN napi_status napi_coerce_to_number(napi_env env,
    napi_value value,
    napi_value* result);
NAPI_EXTERN napi_status napi_coerce_to_object(napi_env env,
    napi_value value,
    napi_value* result);
NAPI_EXTERN napi_status napi_coerce_to_string(napi_env env,
    napi_value value,
    napi_value* result);

// Methods to work with Objects
NAPI_EXTERN napi_status napi_get_prototype(napi_env env,
    napi_value object,
    napi_value* result);
NAPI_EXTERN napi_status napi_get_property_names(napi_env env,
    napi_value object,
    napi_value* result);
NAPI_EXTERN napi_status napi_set_property(napi_env env,
    napi_value object,
    napi_value key,
    napi_value value);
NAPI_EXTERN napi_status napi_has_property(napi_env env,
    napi_value object,
    napi_value key,
    bool* result);
NAPI_EXTERN napi_status napi_get_property(napi_env env,
    napi_value object,
    napi_value key,
    napi_value* result);
NAPI_EXTERN napi_status napi_delete_property(napi_env env,
    napi_value object,
    napi_value key,
    bool* result);
NAPI_EXTERN napi_status napi_has_own_property(napi_env env,
    napi_value object,
    napi_value key,
    bool* result);
NAPI_EXTERN napi_status napi_set_named_property(napi_env env,
    napi_value object,
    const char* utf8name,
    napi_value value);
NAPI_EXTERN napi_status napi_has_named_property(napi_env env,
    napi_value object,
    const char* utf8name,
    bool* result);
NAPI_EXTERN napi_status napi_get_named_property(napi_env env,
    napi_value object,
    const char* utf8name,
    napi_value* result);
NAPI_EXTERN napi_status napi_set_element(napi_env env,
    napi_value object,
    uint32_t index,
    napi_value value);
NAPI_EXTERN napi_status napi_has_element(napi_env env,
    napi_value object,
    uint32_t index,
    bool* result);
NAPI_EXTERN napi_status napi_get_element(napi_env env,
    napi_value object,
    uint32_t index,
    napi_value* result);
NAPI_EXTERN napi_status napi_delete_element(napi_env env,
    napi_value object,
    uint32_t index,
    bool* result);
NAPI_EXTERN napi_status
napi_define_properties(napi_env env,
    napi_value object,
    size_t property_count,
    const napi_property_descriptor* properties);

// Methods to work with Arrays
NAPI_EXTERN napi_status napi_is_array(napi_env env,
    napi_value value,
    bool* result);
NAPI_EXTERN napi_status napi_get_array_length(napi_env env,
    napi_value value,
    uint32_t* result);

// Methods to compare values
NAPI_EXTERN napi_status napi_strict_equals(napi_env env,
    napi_value lhs,
    napi_value rhs,
    bool* result);

// Methods to work with Functions
NAPI_EXTERN napi_status napi_call_function(napi_env env,
    napi_value recv,
    napi_value func,
    size_t argc,
    const napi_value* argv,
    napi_value* result);
NAPI_EXTERN napi_status napi_new_instance(napi_env env,
    napi_value constructor,
    size_t argc,
    const napi_value* argv,
    napi_value* result);
NAPI_EXTERN napi_status napi_instanceof(napi_env env,
    napi_value object,
    napi_value constructor,
    bool* result);

// Methods to work with napi_callbacks

// Gets all callback info in a single call. (Ugly, but faster.)
NAPI_EXTERN napi_status napi_get_cb_info(
    napi_env env, // [in] NAPI environment handle
    napi_callback_info cbinfo, // [in] Opaque callback-info handle
    size_t* argc, // [in-out] Specifies the size of the provided argv array
    // and receives the actual count of args.
    napi_value* argv, // [out] Array of values
    napi_value* this_arg, // [out] Receives the JS 'this' arg for the call
    void** data); // [out] Receives the data pointer for the callback.

NAPI_EXTERN napi_status napi_get_new_target(napi_env env,
    napi_callback_info cbinfo,
    napi_value* result);
NAPI_EXTERN napi_status
napi_define_class(napi_env env,
    const char* utf8name,
    size_t length,
    napi_callback constructor,
    void* data,
    size_t property_count,
    const napi_property_descriptor* properties,
    napi_value* result);

// Methods to work with external data objects
NAPI_EXTERN napi_status napi_wrap(napi_env env,
    napi_value js_object,
    void* native_object,
    napi_finalize finalize_cb,
    void* finalize_hint,
    napi_ref* result);
NAPI_EXTERN napi_status napi_unwrap(napi_env env,
    napi_value js_object,
    void** result);
NAPI_EXTERN napi_status napi_remove_wrap(napi_env env,
    napi_value js_object,
    void** result);
NAPI_EXTERN napi_status napi_create_external(napi_env env,
    void* data,
    napi_finalize finalize_cb,
    void* finalize_hint,
    napi_value* result);
NAPI_EXTERN napi_status napi_get_value_external(napi_env env,
    napi_value value,
    void** result);

// Methods to control object lifespan

// Set initial_refcount to 0 for a weak reference, >0 for a strong reference.
NAPI_EXTERN napi_status napi_create_reference(napi_env env,
    napi_value value,
    uint32_t initial_refcount,
    napi_ref* result);

// Deletes a reference. The referenced value is released, and may
// be GC'd unless there are other references to it.
NAPI_EXTERN napi_status napi_delete_reference(napi_env env, napi_ref ref);

// Increments the reference count, optionally returning the resulting count.
// After this call the  reference will be a strong reference because its
// refcount is >0, and the referenced object is effectively "pinned".
// Calling this when the refcount is 0 and the object is unavailable
// results in an error.
NAPI_EXTERN napi_status napi_reference_ref(napi_env env,
    napi_ref ref,
    uint32_t* result);

// Decrements the reference count, optionally returning the resulting count.
// If the result is 0 the reference is now weak and the object may be GC'd
// at any time if there are no other references. Calling this when the
// refcount is already 0 results in an error.
NAPI_EXTERN napi_status napi_reference_unref(napi_env env,
    napi_ref ref,
    uint32_t* result);

// Attempts to get a referenced value. If the reference is weak,
// the value might no longer be available, in that case the call
// is still successful but the result is NULL.
NAPI_EXTERN napi_status napi_get_reference_value(napi_env env,
    napi_ref ref,
    napi_value* result);

NAPI_EXTERN napi_status napi_open_handle_scope(napi_env env,
    napi_handle_scope* result);
NAPI_EXTERN napi_status napi_close_handle_scope(napi_env env,
    napi_handle_scope scope);
NAPI_EXTERN napi_status
napi_open_escapable_handle_scope(napi_env env,
    napi_escapable_handle_scope* result);
NAPI_EXTERN napi_status
napi_close_escapable_handle_scope(napi_env env,
    napi_escapable_handle_scope scope);

NAPI_EXTERN napi_status napi_escape_handle(napi_env env,
    napi_escapable_handle_scope scope,
    napi_value escapee,
    napi_value* result);

// Methods to support error handling
NAPI_EXTERN napi_status napi_throw(napi_env env, napi_value error);
NAPI_EXTERN napi_status napi_throw_error(napi_env env,
    const char* code,
    const char* msg);
NAPI_EXTERN napi_status napi_throw_type_error(napi_env env,
    const char* code,
    const char* msg);
NAPI_EXTERN napi_status napi_throw_range_error(napi_env env,
    const char* code,
    const char* msg);
NAPI_EXTERN napi_status napi_is_error(napi_env env,
    napi_value value,
    bool* result);

// Methods to support catching exceptions
NAPI_EXTERN napi_status napi_is_exception_pending(napi_env env, bool* result);
NAPI_EXTERN napi_status napi_get_and_clear_last_exception(napi_env env,
    napi_value* result);

// Methods to provide node::Buffer functionality with napi types
NAPI_EXTERN napi_status napi_create_buffer(napi_env env,
    size_t length,
    void** data,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_external_buffer(napi_env env,
    size_t length,
    void* data,
    napi_finalize finalize_cb,
    void* finalize_hint,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_buffer_copy(napi_env env,
    size_t length,
    const void* data,
    void** result_data,
    napi_value* result);
NAPI_EXTERN napi_status napi_is_buffer(napi_env env,
    napi_value value,
    bool* result);
NAPI_EXTERN napi_status napi_get_buffer_info(napi_env env,
    napi_value value,
    void** data,
    size_t* length);

// Methods to work with array buffers and typed arrays
NAPI_EXTERN napi_status napi_is_arraybuffer(napi_env env,
    napi_value value,
    bool* result);
NAPI_EXTERN napi_status napi_create_arraybuffer(napi_env env,
    size_t byte_length,
    void** data,
    napi_value* result);
NAPI_EXTERN napi_status
napi_create_external_arraybuffer(napi_env env,
    void* external_data,
    size_t byte_length,
    napi_finalize finalize_cb,
    void* finalize_hint,
    napi_value* result);
NAPI_EXTERN napi_status napi_get_arraybuffer_info(napi_env env,
    napi_value arraybuffer,
    void** data,
    size_t* byte_length);
NAPI_EXTERN napi_status napi_is_typedarray(napi_env env,
    napi_value value,
    bool* result);
NAPI_EXTERN napi_status napi_create_typedarray(napi_env env,
    napi_typedarray_type type,
    size_t length,
    napi_value arraybuffer,
    size_t byte_offset,
    napi_value* result);
NAPI_EXTERN napi_status napi_get_typedarray_info(napi_env env,
    napi_value typedarray,
    napi_typedarray_type* type,
    size_t* length,
    void** data,
    napi_value* arraybuffer,
    size_t* byte_offset);

NAPI_EXTERN napi_status napi_create_dataview(napi_env env,
    size_t length,
    napi_value arraybuffer,
    size_t byte_offset,
    napi_value* result);
NAPI_EXTERN napi_status napi_is_dataview(napi_env env,
    napi_value value,
    bool* result);
NAPI_EXTERN napi_status napi_get_dataview_info(napi_env env,
    napi_value dataview,
    size_t* bytelength,
    void** data,
    napi_value* arraybuffer,
    size_t* byte_offset);

// Methods to manage simple async operations
NAPI_EXTERN
napi_status napi_create_async_work(napi_env env,
    napi_value async_resource,
    napi_value async_resource_name,
    napi_async_execute_callback execute,
    napi_async_complete_callback complete,
    void* data,
    napi_async_work* result);
NAPI_EXTERN napi_status napi_delete_async_work(napi_env env,
    napi_async_work work);
NAPI_EXTERN napi_status napi_queue_async_work(napi_env env,
    napi_async_work work);
NAPI_EXTERN napi_status napi_cancel_async_work(napi_env env,
    napi_async_work work);

// Methods for custom handling of async operations
NAPI_EXTERN napi_status napi_async_init(napi_env env,
    napi_value async_resource,
    napi_value async_resource_name,
    napi_async_context* result);

NAPI_EXTERN napi_status napi_async_destroy(napi_env env,
    napi_async_context async_context);

NAPI_EXTERN napi_status napi_make_callback(napi_env env,
    napi_async_context async_context,
    napi_value recv,
    napi_value func,
    size_t argc,
    const napi_value* argv,
    napi_value* result);

// version management
NAPI_EXTERN napi_status napi_get_version(napi_env env, uint32_t* result);

NAPI_EXTERN
napi_status napi_get_node_version(napi_env env,
    const napi_node_version** version);

// Promises
NAPI_EXTERN napi_status napi_create_promise(napi_env env,
    napi_deferred* deferred,
    napi_value* promise);
NAPI_EXTERN napi_status napi_resolve_deferred(napi_env env,
    napi_deferred deferred,
    napi_value resolution);
NAPI_EXTERN napi_status napi_reject_deferred(napi_env env,
    napi_deferred deferred,
    napi_value rejection);
NAPI_EXTERN napi_status napi_is_promise(napi_env env,
    napi_value promise,
    bool* is_promise);

// Memory management
NAPI_EXTERN napi_status napi_adjust_external_memory(napi_env env,
    int64_t change_in_bytes,
    int64_t* adjusted_value);

// Running a script
NAPI_EXTERN napi_status napi_run_script(napi_env env,
    napi_value script,
    napi_value* result);

#if NAPI_VERSION >= 2

// Return the current libuv event loop for a given environment
NAPI_EXTERN napi_status napi_get_uv_event_loop(napi_env env,
    struct uv_loop_s** loop);

#endif // NAPI_VERSION >= 2

#if NAPI_VERSION >= 3

NAPI_EXTERN napi_status napi_open_callback_scope(napi_env env,
    napi_value resource_object,
    napi_async_context context,
    napi_callback_scope* result);

NAPI_EXTERN napi_status napi_close_callback_scope(napi_env env,
    napi_callback_scope scope);

NAPI_EXTERN napi_status napi_fatal_exception(napi_env env, napi_value err);

NAPI_EXTERN napi_status napi_add_env_cleanup_hook(napi_env env,
    void (*fun)(void* arg),
    void* arg);

NAPI_EXTERN napi_status napi_remove_env_cleanup_hook(napi_env env,
    void (*fun)(void* arg),
    void* arg);

#endif // NAPI_VERSION >= 3

#ifdef NAPI_EXPERIMENTAL

// Calling into JS from other threads
NAPI_EXTERN napi_status
napi_create_threadsafe_function(napi_env env,
    napi_value func,
    napi_value async_resource,
    napi_value async_resource_name,
    size_t max_queue_size,
    size_t initial_thread_count,
    void* thread_finalize_data,
    napi_finalize thread_finalize_cb,
    void* context,
    napi_threadsafe_function_call_js call_js_cb,
    napi_threadsafe_function* result);

NAPI_EXTERN napi_status
napi_get_threadsafe_function_context(napi_threadsafe_function func,
    void** result);

NAPI_EXTERN napi_status
napi_call_threadsafe_function(napi_threadsafe_function func,
    void* data,
    napi_threadsafe_function_call_mode is_blocking);

NAPI_EXTERN napi_status
napi_acquire_threadsafe_function(napi_threadsafe_function func);

NAPI_EXTERN napi_status
napi_release_threadsafe_function(napi_threadsafe_function func,
    napi_threadsafe_function_release_mode mode);

NAPI_EXTERN napi_status
napi_unref_threadsafe_function(napi_env env, napi_threadsafe_function func);

NAPI_EXTERN napi_status
napi_ref_threadsafe_function(napi_env env, napi_threadsafe_function func);

NAPI_EXTERN napi_status napi_create_bigint_int64(napi_env env,
    int64_t value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_bigint_uint64(napi_env env,
    uint64_t value,
    napi_value* result);
NAPI_EXTERN napi_status napi_create_bigint_words(napi_env env,
    int sign_bit,
    size_t word_count,
    const uint64_t* words,
    napi_value* result);
NAPI_EXTERN napi_status napi_get_value_bigint_int64(napi_env env,
    napi_value value,
    int64_t* result,
    bool* lossless);
NAPI_EXTERN napi_status napi_get_value_bigint_uint64(napi_env env,
    napi_value value,
    uint64_t* result,
    bool* lossless);
NAPI_EXTERN napi_status napi_get_value_bigint_words(napi_env env,
    napi_value value,
    int* sign_bit,
    size_t* word_count,
    uint64_t* words);
NAPI_EXTERN napi_status napi_add_finalizer(napi_env env,
    napi_value js_object,
    void* native_object,
    napi_finalize finalize_cb,
    void* finalize_hint,
    napi_ref* result);
#endif // NAPI_EXPERIMENTAL

NAPI_EXTERN napi_status napi_set_instance_data(napi_env env,
    void* data,
    napi_finalize finalize_cb,
    void* finalize_hint);

NAPI_EXTERN napi_status napi_get_instance_data(napi_env env, void** data);

EXTERN_C_END

#endif // SRC_NODE_API_H_
